Longines HydroConquest Hydroconquest Automatic 41

Reference L3.649.4.16.6

About this watch

The Longines HydroConquest Automatic 41 is a stunning dive watch that seamlessly blends ruggedness and sophistication. With its robust stainless steel construction, scratch-resistant sapphire crystal glass, and automatic movement featuring a reliable date function, this timepiece is designed for both underwater adventures and formal occasions. The 41mm diameter case, mixed indexes on the white dial, and rotating bezel with a 0-60 scale make it visually striking and easy to read. Whether you're snorkeling in the Caribbean or dancing the night away, the HydroConquest is a true statement piece that embodies adventure and sophistication. Its elegant design, stainless steel bracelet, and reliable clasp ensure comfort and security on the wrist. With a water resistance of 300 meters, this watch is perfect for thrill-seekers who appreciate the ocean's beauty. The Longines caliber L633.5 movement, built on a solid foundation of horological excellence, boasts accuracy and precision. This timepiece is more than just a watch; it's an investment in a legacy of horological excellence.
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Key Features

  • 41mm diameter stainless steel case
  • Scratch-resistant sapphire crystal glass
  • Automatic movement with date function
  • Rotating bezel with 0-60 scale for diving
  • Water resistance up to 300 meters
  • Elegant white dial with mixed indexes
  • Stainless steel bracelet and reliable clasp

Specifications

Brand
Longines
Family
HydroConquest
Model
Hydroconquest Automatic 41
Reference
L3.649.4.16.6
Movement
l633-5
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 41mm
Dial Color
White
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Longines Hydroconquest 41m Green full kit with OEM bracelet and rubber strap

Longines Hydroconquest 41m Green full kit with OEM bracelet and rubber strap

For sale is my Longines Hydroconquest 41m ceramic automatic in green. It's a stainless steel case with ceramic bezel and Swiss automatic movement (Longines Calibre L888 series) with approx. 72 hr power reserve.

  • Condition: Used
  • Case Size: 41 mm diameter
  • Case Material: Stainless steel case
  • Movement: Longines Calibre L888 series, approx. 72 hr power reserve
Posted at
Feb 6, 2026, 9:31 AM
Active
[WTS] Longines HydroConquest (Ref. L3.782.4.96.6) $975

Longines HydroConquest (Ref. L3.782.4.96.6) $975

The Longines HydroConquest is a 43mm Swiss automatic diver’s watch featuring a sunray blue dial and 300 meter water resistance.

  • Condition: Very good pre-owned
  • Diameter: 43mm
  • Water Resistance: 300m depth rating
  • Movement: L888 caliber
Posted at
Feb 4, 2026, 11:11 PM
Active
[WTS] 2024 Longines HydroConquest 43mm Black Ceramic L3.782.4

2024 Longines HydroConquest 43mm Black Ceramic L3.782.4

Longines - L3.782.4 · $999
2024 Longines HydroConquest 43mm Black Ceramic watch for sale.

  • Case Size: 43mm
  • Year: 2024
Posted at
Jan 30, 2026, 9:33 PM
Active
Longines HydroConquest, L3.781.4.06.9, Steel Diver, Olive, Excellent Condition.

Longines HydroConquest, L3.781.4.06.9, Steel Diver, Olive, Excellent Condition.

Longines - L3.781.4.06.9 · $1,095
This Longines HydroConquest is a steel diver's watch with an olive green matte dial and a unidirectional rotating ceramic bezel. The stainless steel case measures 41mm in diameter and has a water resistance of up to 300 meters.

  • Condition: Excellent Condition
  • Case Diameter: 41mm
  • Thickness: 11.9mm
  • Bezel Type: Unidirectional rotating Green Ceramic
Posted at
Feb 5, 2025, 2:47 AM
Active